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Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 343-347.DOI: 10.7677/ynzwyj201313052

• 研究论文 • 上一篇    下一篇


 苏旭1、2, 岳伟1, 刘建全1   

  1. 1 兰州大学生命科学学院草地农业生态系统国家重点实验室,甘肃 兰州730000;2 青海师范大学生命与
    地理科学学院青藏高原环境与资源教育部重点实验室,青海 西宁810008
  • 收稿日期:2013-03-19 出版日期:2013-05-25 发布日期:2013-03-26
  • 基金资助:

    科技部科技基础性工作专项重点项目 (2007FY110100)和国家自然科学基金项目 (31260052)

Germplasm Collection and Preservation of Orinus (Poaceae) in the QinghaiTibet Plateau

 SU  Xu-1、2, YUE  Wei-1, LIU  Jian-Quan-1   

  1. 1 State Key Laboratory of Grassland AgroEcosystem, School of Life Science, Lanzhou University, Lanzhou 730000, China;
    2 Key Laboratory of Education Ministry of Environments and Resources in Tibetan Plateau, School of Geography
    and Life Science, Qinghai Normal University, Xining 810008, China
  • Received:2013-03-19 Online:2013-05-25 Published:2013-03-26
  • Supported by:

    科技部科技基础性工作专项重点项目 (2007FY110100)和国家自然科学基金项目 (31260052)



关键词: 青藏高原, 固沙草属, 种质资源, 物种划分


 Orinus is an alpine genus with important values in the grass family (Poaceae). All six species recognized within this genus are distributed in the QinghaiTibet Plateau. In the past five years, we surveyed the distributions of each species in this region and collected germplasm resources, including seeds, DNA and specimens. We further used the ITS sequence variation to tentatively delimit the previously acknowledged species and found that there is no distinct boundary between species and only two distinct lineages were recognized for all six species, indicating that some species should not be treated as separate species. These data provide an important resource for further utilizing and studying this genus.

Key words: Qinghai-Tibet Plateau, Orinus, Germplasms, Species Delimitation